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Scalable filtering table

  • US 20020087999A1
  • Filed: 08/22/2001
  • Published: 07/04/2002
  • Est. Priority Date: 04/26/2000
  • Status: Active Grant
First Claim
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1. A broadcast receiver for processing digital data from a multiplexed digital transport stream, the transport stream comprising a plurality of transport packets, wherein each transport packet is defined by a parameter identifier, the broadcast receiver comprising:

  • a. a receiving unit for receiving the multiplexed transport stream;

    b. a memory area coupled to the receiving unit for storing incoming digital data;

    c. a scalable filtering table coupled to the receiving unit for identifying at least one parameter identifier among a potential plurality of parameter identifiers within the multiplexed transport stream data, the scalable filtering table comprising a first logical entry for storing a digital value corresponding to a parameter identifier within a transport packet, wherein the filtering table allows a transport packet containing a parameter identifier having a corresponding digital value stored within the filtering table to be stored in the memory area of the broadcast receiver; and

    d. a controller coupled to the scalable filtering table, the controller configured to vary a number of logical entries within the scalable filtering table, to optimally store a select number of distinct digital values corresponding to select parameter identifiers.

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